Charles & Mildred Thumm owned a dude ranch in Elfrida. In the early morning hours of December 4 1977 one of their employees, James Dean Clark, killed two other wranglers, George Martin & Gerald McFerron. He then went up to the house and killed the Thumms. Clark was executed in 1993.

Social Security Death IndexName: Mildred ThummState of Issue: CaliforniaDate of Birth: Friday April 09, 1915Date of Death: December 1977Est. Age at Death: 62 years, 8 monthsLast known residence:City: Elfrida; GleesonCounty: CochiseState: Arizona